Rourke, John T., author
McGraw-Hill, 2007
Buku Teks
Calvocoressi, Peter
Longman, 1992
Buku Teks
Presses Universitaires de France, 1951
Buku Teks
Andrew Hurrell, Ngaire Woods, Satria Utama S., Diana Arimbi
Fakultas Ekonomi UI, 2001
Buku Teks
Kalijarvi, Thorsten V., author
Thomas Y. Crowell, 1954
Buku Teks